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Патент USA US2133428

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Oct. 18, 1938.
2,133,428
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CUSHION UNIT Fem/[INU APPARATUS
Fi -led June 16 , 1957
4 sheets-Shen 1
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CUSHION UNIT FORMING APPARATUS
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CUSHION UNIT FORMING APPARATUS
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CUSHION UNIT FORD/[ING APPARATUS
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2,133,428
Patented Oct. 18, 1938 l
UNITED STATES PATENT OFFICE
2,133,428
CUSHION UNIT FORMING APPARATUS
Walter P. Cousino, Detr oit, Mich., assignor to
Chrysler Corporation, Highland Park, Mich.,
a corporation of Delaware
Application June 16, 1937, Serial No. 148,617A
15 Claims. (Cl. 153-77)
This invention r elates to improved apparatus
for manufacturing resilient cu shion units for
seats, mattresses, and the like.
More particularly, the invention pertains to
5 apparatus for manufacturing cushion units of this
character which include convoluted sheet-like re
silient netting or other suitable resilient material.
One of the main objects óf the invention is the
provision of apparatus of this kind by which
elongated, sheet-like stock, such as netting com
prising wire strands, can be economically and
continuously brought to convoluted form and
subsequently cut into units of desired length.
Another object of the invention is to provide
i.. il
improved apparatus of this -character by which
successively adjacent sections of an elongated
piece of sheet-like stock can be formed into con
volutions of progressively varying height for pro
ducing tapering cushion units -which vary .in
height at selected portions.
A further object of the invention is to provide
selectively adjustable apparatus of this character
by which may be formed cushion units having
opposite sides that are parallel and substantially
25 perpendicular to its height, two opposite sides
which slope toward each other at inclinations to
the heights of the unit, or one side which is per
pendicular to the heights of the cushion and an
opposite side inclined with respect thereto.
A still further object of the invention is the
30
provision of apparatus of this kind which auto
matically `repeats one tapered or non-tapered
cushion unit forming operation after another.
Additional objects of the invention are to pro
vide improved means for crimping selected por
tions of the sheet-like stock in order that the same
‘ will be self-sustaining in contour; and to provide
Vautomatically operable crimping means of this
character which is adapted to variably predeter
mine the angular relationship between portionsl
0f the sheet-like material on opposite sides of the
crimped portions thereof,
An illustrative embodiment of the invention is
shown in the accompanying drawings, in which:
Fig. 1 is a fragmentary perspective view of one
45
type of resilient cushion unit the improved ap
paratus is adapted to form.
Fig. 2 is a fragmentary perspective View of an
other type of resilient cushion unit the improved
apparatus is adapted to form.
Fig. 3 is a fragmentary perspective view of still
another type of cushion unit the improved appa
ratus is adapted to form.
Fig. 4 is a vertical sectional View of a cushion
unit forming machine embodying the invention,
showing parts thereof removed to disclose the
underlying structure.
Fig. 5 is a fragmentary vertical, transverse sec
tional view taken on the line 5-5 of Fig. 4.
Fig. 6 is a fragmentary, horizontal sectional
View taken on the line 6--6 of Fig. 4.
Fig. 7 is a fragmentary horizontal sectional
view taken on the line 1-1 of Fig. 4.
Fig. 8 is a vertical sectional view taken on the
line 8-8 of Fig. 4.
Fig. 9 is a transverse, vertical sectional view
taken on line 9-9 of Fig. 7.
Fig. 10 is an end elevational view showing the
machine illustrated in Fig. 4 as viewed from the
left of the latter figure.
Fig. 11 is an end elevational View showing the
machine illustrated in Fig. 4 as viewed from the
right of the latter figure.
Fig. 12 is a'horizontal sectional View taken 20
on the line l2-I2 of Fig. 10. '
~
In Figs. 1 to 3 of the drawings are illustrated
three forms of cushion units comprising convo
luted sheet-like material which the improved
forming apparatus is adapted to produce. In
each of these forms the sheet-like material 1n 25
cludes wire netting, generally designated by the
numeral lll, having longitudinally extending
strands or Warp Il comprising resilient wire sim
ilar to piano wire. The transverse strands or
Woof l2 may comprise ductile Wire or any other
suitable material including 'cord which may be
relied upon to secure the Warp in proper spaced re
lationship. The sheet-like stock of the foregoing
nature is preferably dipped in a rubber-contain
35
ing solution to provide a iilm of rubber-contain
ing composition over or between the interstices
of its entirety, or over selected space portions
thereof. In the form illustrated in Fig. 1 the
rubber film is designated by the numeral I3. In
this figure the resilient cushion unit comprises
convolutions of uniformed heights and conse
quently the opposite side planes of the cushion
unit are substantially parallel and perpendicular
to the height of the unit.
In the» form of the cushion unit illustrated in
Fig. 2, the upper and lower rows of convolutions
thereof progressively increase in height from left
to right, as viewed in this. figure in order to pro
vide opposite side planes which converge and
which are inclined with respect to the normal
height of the cushion. In Fig. 3 of the drawings
is illustrated a cushion unit in which only the
convolutions of one row of convolutions vary pro
gressively in height, the convolutions of the other
row being substantially uniform in height in 55
2
2,133,428
order to provide one side plane which is sub
stantially normal to the heights of the convolu
tions and another side plane which is inclined
with respect thereto.
through the center of the shaft portion 20 thereof
to the external end of this shaft portion.
A fluid
pressure `supply line 43, Connected with a source
of fluid pressure (not shown), is communicatively
Cushion units of the foregoing character are connected with the external end. portion of the
generally shown and described in Patents Nos. , passage 42 of the shaft support 2U.
As illus
2,094,041 and 2,094,074, both granted September trated in Fig. 4, a passage system 42 supplies
fluid
28, 1937 in the names of Lee and Tea, and Lee, pressure to the expansible tubes 39 of the vanes
Tea. and Anderson, respectively.
A and B of each roll, respectively.
10
The cushion unit forming machine illustrated
Provided in the fitting 4I, associated with each
in the drawings comprises, as shown in Fig. 4,
expansible tube 39, is valve mechanism for auto
a supporting frame structure generally desig
matically charging and exhausting fluid medium
Ul
nated by the numeral I4 having longitudinally
spaced end plates I5 and I6, respectively, on
15 which upper and lower rolls I1 and I8, respec
tively are journalled.
The roll I1 includes ax
ially extending shaft portions I9 and-20 which
are journalled in bearings 2I and 22, respec
tively, mounted in apertures formed in the side
20 plates I5 and I6, respectively. The roll I8 lhas
axially extending shaft portions 23 and 24 jour
nalled in bearings 25 and 26 mounted in aper
tures in the walls I5 and I6, respectively. The
shaft portions 20 and 24 of the right ends of the
25 rolls I1 and I8, as viewed in Fig. 4, extend out
wardly beyond the end plate I6 of the frame
structure I4 and are provided with gears 21 and
28, respectively, having teeth permanently mesh
ed together.
The teeth of the lower gear 28 are
30 meshed with teeth of a drive pinion 29 carried by
a shaft 30 by which the rolls are drivingly rotated
in timed relationship with respect to each other.
The rolls I1 and I8 are provided with two sets
of correspondingly arranged pairs of radially ex
35 tending blades and vanes, the vanes of each roll
having grooves in their outer extremity for re
ceiving the end portions of respective correspond
ing blades of the otherY roll. In designating the
blades and vanes of the respective rolls I1 and
40 I0, lower case letters a, b, c, d, eVand f have been
applied to the blades of each of the rolls and
»capital letters A, B, C, D, E and F have been
applied to the corresponding vanes with which
the foregoing blades of each of the rolls cooper
45 ate.
The folds or creases formed by the corre
sponding blades and vanes are designated by the
corresponding letters a’ to f', inclusive, in Fig. 1.
Each of the vanes B and C comprise a central
plate 3| and side plate 32 adjacent the opposite
side surfaces thereof which are detachably se
cured to the center' plate 3I by screws 33. The
side plates 32 extend beyond the outer extremities
vof the center plate 3I in order to provide» the
above mentioned grooves at the outer extremities
55 of the vanes.
Each vane A and D comprises a
fixed center plate 34 having a fixed side plate
secured adjacent one side surface thereof by a
screw 35 and a movable side plate or jaw 36
disposed adjacent the opposite side surface of the
60 center plate 34 and confined between the latter
side surface and a supporting wedge 31 carried
by the roll. Formed in the supporting wedge 31Y
~ is a recess 3B in which is disposed a longitudinally
extending expansible tube 39, preferably com
prising rubber.
The vanes A and D and associ
Y ated clamping mechanism are substantially iden
tical and therefore a description of one will serve
for all. The left end of the tube 39, as viewed
in Fig. 4, is closed andthe right end thereof is
provided with a fluid medium inlet tube 40 which
is connected to a fitting 4I carried by the roll I1,
for example, and through which fluid may be
supplied to the interio-r of the tube 39. The in
terior of the fitting 4I- communicates with a
system of passages 42 leading from the roll
from the interior ' of each flexible tuber
This
valve mechanism includes a valve member 44
having a stem 45 extending Ybeyond the housing
of the fitting 4I and adapted to be engaged and
operated by a cam plate» 46 mounted on the end
Wall I6 of the supporting frame I4. As the roll
I1, for example, rotates the cam plate urges the
Valve and valve stem leftwardly, as viewed in '
Fig. 4, at desired angular positions of the roll in
Yorder to admit fiuid'medium from the passage
system 42 to the inlet pipe V4I). When the valveV
is in its inwardly pressed position, the exhaust
port or groove 41 thereof is closed. A spring 48
bearing between the valve 44 and a shoulder in
the interior of the casing of the fitting 4I nor
mally urges the valve rightwardly, as viewed in
Fig. 4, cutting off the supply of fluid medium to
the yieldable tubes 39 and connecting the same 30
to atmosphere through the exhaust groove 41,
when'the cam plate will permit such rightward
movement of the valve.
The- fluid pressure medium system of each
roller is provided with similar valve control 35
means to predetermine the periods of arcuate
»travels of the rollers during which the movable
clamping jaws 36 of the vanes A and D are actu
ated. 'I'he movable jaws 36 are normally spread
apart from the fixed jaws of the vanes A and D 40
by spring plates 49 disposed in recesses 5U formed
in the sides of the central plates 34, as illustrated
in Figs. 6 and 7.
In order to predetermine and, in some cases,
vary the distances between selected fold edges
produced by the cooperating vane and blade
members of the respective rolls I1 and I3, there
are provided on each of the foregoing rolls radi
ally extensible spacing members generally des
ignated by the numeral 5I, 52, 53 and 54 on the ,
upper roll I1, as'viewed in Fig. 8, and 55, 56, 57
These extensible
spacing members are substantially identical in
construction and therefore the description of
Vand 58 on the lower roll I8.
Vone will serve for all.
Each of the extensible
members includes a central plate 59 mounted
in a groove 6U formed in one of the'rolls.
Each '
plate 59 is somewhat shorter than the length of
the roll on which it is mounted and extends sub
stantially radially outwardly from the periphery 60
of the roll and is provided with a pair of slots
6I which are inclined with respect to the lon
gitudinal axis of the roller.
Radially slidably
mounted on each plate 59 is an extensible mem
Yber 62
of U-shaped cross section. Movement
`
of the U-shaped Yextensible member 62 is con
trolled by cross pins 63 extending through the
slot 6I and having rollers 54 thereonengaging
the edge portions of the slot 6I in order to main
tain the outer rounded edge 65 of the exten
sible member 62 substantially parallel to the
axis of the roll.
'
The extensible 'member 62 of each spacing
Vmeans may be adjustably radially positioned by
shifting them axially of the roll in order to bring 75
3
2,138,428
vabout a cam and follower action between the
a bifurcated end portion 98 pivotally connected
inclined slots 6| and rollers 64. All of the spac
ingA members of both rolls, designated by the
numerals 5I` to 58, inclusive, may be simultane
ously varied in accor-dance with and in timed re
lationship with respect to rotation of the rolls
I1 vand I8 by the apparatus illustrated in Figs.
4, 10 11 and 12. This apparatus comprises a
plate 66 axially slidably mounted on each shaft
end portion I9 and 23 of each of the rolls I1
and I8, respectively. Inasmuch as the plates 66
of each of the rolls I1 and I8 are alike, a de
~4scription of the yplate 66 of the roll I8 will serve
for both. Links 61 pivotally mounted at’their
left ends, as viewed in Fig. 4, on the plate 66
extend between the sides of the U-shaped ex
15
with a crank arm 99 fixed on the shaft 83 and
by means of which the shaft 83 is rotated to
actuate the forks 82 and the plates 66 with which
they cooperate.
rotation of the roll I1 and I8. After a prede
10
termined number of rotations of the rolls I1 and
'I8 corresponding to the number of rotations re
quired to produce a cushion of a selected dimen
sion, the upper end of the follower, as viewed in
Fig. 10, moves into the low point or notch |00
'of the cam 81 at which point one complete cycle 15
tensible members 62 and are pivotally attached
thereto by a cross pin 68 at a location leftwardly
ofthe operation of the apparatus is completed
and the next cycle is ready to commence.
`When the spacing means of both rolls I1 and
I8 are varied in the foregoing manner during
ofthe left extremity 19 of the center plate 59.
Theplate 66 is yieldably urged leftwardly by coil
springs 80 disposed in bores 8| formed in the
body portion of the roll I8 and which bear be
tween the latter and the adjacent side face of
the plate 66. The springs 80 urge the plate 66
and extensible members 62 leftwardly as viewed
25 in Fig.`4, thereby retaining the extensible mem
bers 62 in their retracted position. During right
ward movement of the plate E56, the extensible
members 62 are accordingly moved rightwardly
and they are cammed outwardly by the slot and
roller connection between the extensible mem
bers and the center plate 59. In this manner,
simultaneous movements of all of the extensible
members 62 of the spacing means of each roll are
30
35
The contour of the cam 81
predetermines the amount the extensible U
shaped member 62 of the variable spacing means
5| to 58 are extended outwardly during each
one complete cushion forming cycle of operation 20
of the apparatus, the height of both the upper
and lower series of convolutions shown in Fig. 2
are successively varied to produce a cushion unit
of wedge-shaped formation having upper and
lower converging sides inclined with yrespect to 25
the central intermediate plane of the cushion.
If desired, the plate 66 of either or both the
upper and lower rolls I1 or I8 may be rendered
inoperative or adjustably ñxed in order to vary
only the spacing means of one of the rolls- or 30
simultaneously adjusted.
The plates 66 of the rolls I1 and I8 are simul
taneously and correspondingly actuated by spaced
forks 82 carried by a shaft B3 which is journalled
in bearings 84 mounted on the side plate I5 of
the frame structure. One fork of the shaft 83
operates upon the plate 68 of each roll I1 and
I8, respectively, through the> medium of a ball
bearing race ring 85 surrounding a hub portion
on the plate 66, there being a series of ball bear
ings 86 interposed between the race ring 85 and
45 the hub portion of the plate 66, as illustrated in
Fig. 4.
The shaft 83 and forks 82 carried thereby are
automatically actuated by control mechanism
comprising a cam 81 and follower 88, shown in
Fig. 10. The cam 8'7 is drivingly operated in
timed relationship with respect to rotation of the
train of gearing comprising
, rolls I1 and I8 by a
a gear 89 fixed on the left end portion 23 of
the shaft of the lower roll I8, having teeth
meshed with an idler pinion 90 carried by an
idler shaft 9| having a second idler pinion 92
provided with teeth meshed with a cam gear 93
journalled on the left end portion I9 of the
shaft of the upperroll I1. The cam 81 is driv
GO ingly connected by a pin 94 with the cam gear
93, as illustrated in Fig. 4. The relative sizes
of these gears and pinion's may be so predeter
mined so as to cause one complete rotation of
the cam 81 during a selected number of rota
65 tions of the rolls I1 and I8 corresponding to
the number of rotations thereof required to
produce one complete cushion unit.
The follower 88 comprises a lever having one
end pivotally mounted at 95 on the frame struc
ture of the apparatus and is provided with a piu
rality of holes 96 by virtue of which its effective
length may be altered if desired. Pivotally at
tached to the follower 88 at a location inter
mediate its ends is an adjustable link 91 having
so as not to vary the spacing means of either
of the rolls during each cushion forming cycle
thereof.
In this case only one of the rows of
convolutions, as shown in Fig. 3, is varied in
height and as a result only one side face of the
cushion will be brought into inclined relation
ship with respect to a horizontal plane, for ex
ample. This may be accomplished by removing
one or both of the set screws |05 by which the
forks 82 are non-rotatably secured to the shaft .40
83. The plates 66 may be ñxed in position to
hold the extensible members 59 at selected ra
dial positions by set screws |06 removably
threaded therein and also threaded in apertures
545
formed in the left ends of the rolls I1 and I8.
The Operation of the foregoing cushion unit
forming apparatus will be clearly understood
from a consideration of Fig. 8 wherein a roll of
sheet-like resilient material I 0| is supported on
a -spindle |02 adjacent the rolls I1 and I8 which 50
are driven by the gearing 21, 28 and 29 in clock
wise and counterclockwise directions respective
ly. The sheet-like stock |0| is fed between the
rolls I1 and I8 during operation thereof and por
tions of the sheet-like stock are engaged between
the corresponding blades a to f and channels of
the vanes A to F, respectively. The blades force
the sheet-like stock into the channels in order
to crimp the stock to bring the same to the con
voluted formation shown in Figs. l to 3. Some 60
of the fold edges thus formed are crimped to
provide relatively sharp’angular relationship be
tween adjacent panels- of the convolution by the
clamping jaws of the vanes designated by A and
D. During one complete rotation of the rolls I1 65
and'I8', fold edges and corresponding convolu
tions marked a’, b', c', d', e’ and f’ in Fig, 1 are
formed. In Ythe manufacture of tapered cushion
units either of the forms shown in Figs. 2-` and 3,
the distances between the folds and edge por 70
tions are varied automatically in the foregoing
manner.
The resulting cushion unit comprises a plural
ity of convolutions which are substantially self
sustaining in shape and which remain in nested
4
2,133,428
formation. The cushion unit may be embodied
in a seat, mattress or similar structure, by en
closing it within suitable upholstery or fabric
material. The apparatus is entirely automatic
in its operation and is capable of high speed pro
duction of cushion units.
Although but several specific embodiments of
the invention are herein shown and described,
it will be understood that various changes in
the size, shape and arrangement of `parts may
be made without departing from the spirit of
my invention.
What I claim is:
l. Apparatus for forming a cushion unit from
resilient sheet-like material comprising a pair of
rolls between which said material is receivable,
a plurality of spaced outwardly extending vane
members on each roll having a channel in its
outer extremity, and a plurality of blades on
each roll constructed and arranged to extend
into the channel of a corresponding vane mem
ber on the other roll respectively during each
complete rotation of said rolls for creasing said
material during passage thereof between said
25 rolls at selected- locations and in respectively
opposite directions relative to the plane of said
material respectively and for conditioning the
latter to assume a self-sustaining convoluted
contour.
30
'
2. Apparatus for forming a cushion unit from
resilient sheet-like material comprisingra pair of
rolls between which said material is'receivable,
a plurality of spaced outwardly extending vane
members on each roll having a channel in its
35 outer extremity, a plurality of blades on each
roll constructed and arranged to extend into the
channel of a corresponding varie member on the
other roll respectively during each complete ro
tation of said rolls for creasing said material
40 during passage thereof between said rolls at`se
lected'locations and in respectively opposite di
rections relative to the plane of said material
respectively and for conditioning the latter to
assume a self-sustaining Vconvoluted contour, and
45 means?on eachV of said rolls for selectively pre
determining the distances between the locations
on said'material at which certain of said creases
are formed.
'
'
3. Apparatus for forming a cushion unit from
50
resilient sheet-likeY material comprising Ya Vpair
of rolls between which said material is receiv
able, a plurality of spacedV outwardly extending
vane members on each roll having a -channel in
its outer extremity, a plurality of blades on each
roll constructed and arranged to extend into the
channel of a corresponding vane member on the
other roll respectively during each complete ro
60
tation of said rolls Vfor creasing said’material
during passage thereof between said rolls at se
lected locations and in respectively opposite di
rections relative to the plane of said material
respectively and for conditioning the latter to
assume a self-sustaining? convoluted contour,
and automatically variable members operable in
timed relation to rotation of said rollsfor vary
ing the distance between locations on said sheet
like material at which certain of said creases
constructed and arrangedV to extend into the
channel of a corresponding vane member on the
other roll respectively during each complete ro
tation of said rolls for creasing said material dur
ing passage thereof between said rolls at selected
locations and in respectively opposite directions
relative to the plane of said material respectively
and for conditioning the latter to assume a self
Vsustaining
convoluted contour,
substantially
radially shiftable spacing members on said rolls 10
for varying the distance between locations on said
sheet-like material at which certain of said
creases are formed, and apparatus for automati
cally varying the positions of said spacing mem
bers during operation of said rolls, said appara
tus being operable in timed relation to rotation
or" said rolls and so constructed and arranged as
to progressively decrease the distance between
certain of said locations during a selected num
er of convolution-forming cycles of operation 20
of said rolls.
5. Apparatus for forming from a strip of sheet
like resilient material a cushion unit comprising
successive convolutions extending at opposite in
clinations with respect to a plane intermediate 25
the opposite side planes of said unit including first
and second rolls between which said strip is re
ceivable, three successive coacting female and
male creasing members on said iirst and second
rolls respectively adapted to crease said strip 30
transversely of its length at longitudinally spaced
locations and to fold adjacent panels thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls
for forming one of said convolutions of said unit,
and three consecutive male and female creasing 35
members on said first and second rolls respec
ytively adapted to crease said strip transversely
of its length at longitudinally spaced locations
and to fold adjacent panels thereof in an oppo
site direction relative to the normal plane of said
strip for forming the next successive convolution
of said unit.
6; Apparatus for forming from. a strip of sheet
like resilient material a cushion unit comprising
successive convolutions extending at opposite in 45
clinations with respect to a plane intermediate
the opposite side planes of said unit including
ñrst and second rolls between which said strip
is receivable, three successive coacting female and
male creasing members on said ñrst and second 50
rolls respectively adapted to crease said strip
transversely of its length at longitudinally spaced
locations and to fold adjacent panels thereof in
one direction relative to the normalplane of said
strip during passage thereof between said rolls for
forming one of Vsaid convolutions of said unit,
and three consecutive male and female creasing
members on said first and second rolls respec
tively adapted to crease said strip transversely
of its length atY longitudinally spaced locations 60
and to'fold adjacent panels thereof in an oppo
site direction relative to the normal plane of said
strip for forming the next successive convolution
of Vsaid unit, said rolls having duplicate sets o-f
said creasing members disposed in said forego
ing arrangement for forming four successive con
are'formed during convolutions forming cycles volutions of said unit during each complete ro
of said rolls.
. Y'
tation of said rolls.
r4. Apparatus for forming a cushion unit from
7. Apparatus for forming from a strip of sheet
resilient sheet-like material comprising a pair of '
like resilient material a cushion unit comprising
rolls between which said material is receivable,
a plurality of spaced outwardly extending vane successive convolutions extending at opposite in
members on each roll having a channel in its clinations with respect to a plane intermediate
outer extremity, a plurality of blades on each roll the opposite side planes of said unit including
first and second rolls 'between which said strip is 76
5
2,133,428
receivable, three successive coacting female and
male creasing members on said first and second
rolls respectively adapted to crease said strip
transversely of its length at longitudinally spaced
locations and to fold adjacent panels thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls
for forming one of said convolutions of said unit,
three consecutive male and female creasing mem
10 bers on said first and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinallyy spaced locations and to
fold adjacent panels thereof in an opposite direc
tion relative to the normal plane of said strip
15 for forming the next successive convolution of
said unit, and variable spacing members between
certain of said creasing members for predeter
mining the distance between the creases formed
thereby in said strip.
20
8. Apparatus for forming from a strip of sheet
like resilient material a cushion'unit comprising
successive convolutions extending at opposite in
clinations with respect to a plane intermediate
the opposite side planes of said unit including
first and second rolls between which> said strip
is receivable, three successive coacting female
and male creasing members on said first and sec
ond rolls respectively adapted to crease said strip
transversely of its length at longitudinally spaced
30 locations and to fold adjacent panels thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls
for forming one of said convolutions of said unit,
three consecutive male and female creasing mein
bers on said first and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinally spaced locations and to
portions of said strip are disposed therebetween in
order to crimp the adjacent portions of said strip.
10. Apparatus for forming from a strip of sheet
like resilient material a cushion unit comprising
successive convolutions extending at opposite in
clinations with respect to a plane intermediate
the opposite side planes of said unit including first
and second rolls between which said strip is re
ceivable, three successive coacting female and
male creasing members on said first and second
rolls respectively adapted to crease said strip
transversely of its length at longitudinally spaced
locations andgto fold adjacent panels thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls for
lforming one of said convolutions of said unit,
three consecutive male and female creasing mem
bers on said first and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinally spaced locations and to 20>
fold adjacent panels thereof in an opposite direc
tion relative to the normal plane of said strip for
forming the next successive convolution of said
unit, one of said female creasing members of one
roll including relatively movable jaws between 25
which the associated male creasing member of the
other roll and portions of said strip are receivable,
means for automatically bringing said jaws
toward each other when said latter male creasing
member and portions of said strip are disposed
therebetween including a pneumatically expansi
ble element, and actuating mechanism operable
in timed relation with respect to rotation of said
rolls for supplying a fluid pressure medium
35
thereto.
Ill. Apparatus for forming a cushion unit from
resilient sheet-like material comprising a pair of
fold adjacent panels thereof in an opposite direc
tion relative to the normal plane of said strip for
forming the next successive convolution of said
rolls between which said material is receivable, a
plurality of spaced outwardly extending vane
of said creasing members for predetermining the
roll constructed and arranged to extend into the
40 unit, variable spacing members between certain
distance between the creases formed thereby in
said strip, and control apparatus operable in
timed relationship with respect to rotation of said
45 rolls for automatically varying the positions of
said spacing members during each of a plurality
of rotations of said rolls.
9. Apparatus for forming from a strip of sheet
like resilient material a cushion unit comprising
50 successive convolutions extending at opposite in
clinations with respect to a plane intermediate
the opposite side planes of said unit including
first and second rolls between which said strip is
receivable, three successive coacting female and
members on each roll having a channel in its 40
outer extremity, a plurality of blades on each
channel of a corresponding vane member on the
other roll respectively during each complete ro
tation of said rolls for creasing said material g
during passage thereof between said rolls at se
lected locations and in selected directions rela
tive to the plane of said material respectively and
for conditioning the latter to assume a self-sus
taining convoluted contour, one of said vane 50
members of one roll including a pair of relatively
movable jaws between which a POr’ßíOn 0f a cor
responding blade member of the other roll and
portions of said strip are receivable, and means
rolls respectively adapted to crease said strip
for bringing said jaws toward each other when 55
said blade and strip portions are therebetween
in order to crimp the adjacent portions of said
transversely of its length at longitudinally spaced
strip.
male creasing members on said first and second
i
locations and to fold adjacent panels thereof in
l2. Apparatus for forming from a strip cf sheet
one direction relative to the normal plane of said
like resilient material a cushion unit comprising
successive convolutions, including a support, first
strip during passage thereof between said rolls for
forming one of said convolutions of said unit,
three consecutive male and female creasing mem
bers on said first and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinally spaced locations and to
fold adjacent panels thereof in an opposite direc
tion relative to the normal plane of said strip for
forming the next successive convolution of said
unit, one of said female creasing members of one
roll including relatively movable jaws between
which the associated male creasing member of the
other roll and portions of said strip are receivable,
and means for bringing said jaws toward each
76 other when said latter male creasing member and
and second rolls rotatably supported by said sup
port and adapted to receive said strip therebe
tween, three successive coacting female and male
creasingfmembers on said first and second rolls
respectively adapted to crease said strip trans
versely of its length at longitudinally spaced lo
cations and to fold adjacent panels thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls r7.0
for forming one of said convolutions of said unit,
three consecutive male and female creasing mem
bers on said first and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinally spaced locations and to 75
6
2,133,428
fold adjacent panels thereof in an opposite direc
tion relative to the normal plane of said strip
for forming the next successive convolution of
said unit, one of said female creasing members of
one roll including relatively movable jaws be
tween which the associated male creasing mem
ber of the other roll and portions of said strip are
receivable, a hydraulically expansible element car
ried by said latter roll and adapted to actuate said
10 relatively movable jaws, said latter roll having a
passage for conveying fluid pressure to said ex
pansible element, a valve element carried by said
latter roll and adapted to control the passage of
fluid pressure into and out of said expansible ele
15 ment, a cam member fixed to said support and
adapted to adjust said valve element whereby the
fiuid pressure flow through said passage is con
trolled, said Valve element and said cam member
being operable in timed relation with respect to
20 the rotation of said rolls for adjusting said valve
element so that fluid pressure is admitted from
said passage to said expansible element to bring
said jaws toward each other only when said latter
male creasing member and portions of said strip
25 are disposed therebetween.
13. Apparatus for forming from a strip of
sheet-like resilient material a cushion unit com
prising successive convolutions, including a sup
port, first and second rolls rotatably supported by
30 said support and adapted to receive said strip
therebetween, three successive coacting female
and male creasing members on said first and
second rolls respectively adapted to crease said
strip transversely of its length at longitudinally
35 spaced locations and to fold adjacent panels
thereof in one direction relative to the normal
plane of said strip during passage thereof between
said rolls for forming one of said convolutions of
said unit, three consecutive male and female
40 creasing members on said first and second rolls
respectively adapted to crease said strip trans
versely of its length at longitudinally spaced loca
tions and to fold adjacent panels thereof in an
opposite direction relative to the normal plane of
45 said strip for forming the next successive con
volution of said unit, a plurality of longitudinally
extending plate members fixed to said rolls be
tween certain of said creasing members and ex
tending >substantially radially outwardly from
50 the periphery of said rolls, each of said plate
Imembers having a pair of slots which are inclined
with respect to the longitudinal axes of said rolls,
extensible members of substantially U-shaped
cross section each of which is slidably mounted
55 on one of said plate members and having cross
pins extending into said slots, and means on said
60
one direction relative to the normal plane of said
strip during passage thereof between said rolls
for forming one of said convolutions of said
unit, three consecutive male and female creasing
members on said first and second rolls respec
5
tively adapted to crease said strip transversely
of its length at longitudinally spaced locations
and to fold adjacent panels thereof in an opposite
direction relative to the normal plane of said
strip for forming the next successive convolution
of said unit, a plurality of longitudinally extending
plate members fixed to said rolls between certain
of said creasing members and extending substan
tially radially outwardly from the periphery of
said rolls, each of said plate members having a
pair of slots which are inclined With respect to
the longitudinal axes of said rolls, lextensible
members of substantially U-shaped cross section
each of which is slidably mounted on one of
said plate members and having cross pins ex 20
tending into said slots, a pair of plates each of
which is axially slidably mounted on an adjacent
shaft end portion of one of said rolls, links piv
otally connected to the sides of said extensible
members and to said plates, yieldable means for 25
yieldably urging said plates away from said rolls
whereby said cross pins are retained in their
retracted positions in one extremity of said slots,
and means including a cam operable in timed rela
tionship with respect to rotation of said rolls 30
for automatically varying the positions of said
plates whereby the radial movement of all of
said extensible members is controlled during each
of a plurality of rotations of said rolls.
15. Apparatus for forming from a strip of 35
sheet-like resilient material a cushion unit com
prising successive convolutions extending at op
posite inclinations with respect to a plane inter
mediate the opposite side planes of said unit, in
cluding a support, first and second rolls having
shaft end portions rotatably supported by said
support and adapted to receive said strip there
between, three successive coacting female and
male creasing members on said first and second
rolls respectively adapted to crease said strip 45
Vtransversely of its length at longitudinally spaced
locations and to fold adjacent panelsA thereof in
one direction relative to the normal plane of said
strip during passage thereof between said rolls
for forming one of said convolutions of said unit, 50
three consecutive male and female creasing mem
bers on said ñrst and second rolls respectively
adapted to crease said strip transversely of its
length at longitudinally spaced locations and to
fold adjacent panels thereof in an opposite direc 55
tion relative to the normal plane of said strip for
support for adjustably` varying the location of
forming the next successive convolution of said
said cross pins in said slots whereby the radial
movement of each of said extensible members is
unit, a plurality of longitudinally extending plate
controlled for predetermining the distance be
said creasing members and extending substan 60
tially radially outwardly from the periphery of
tween the creases in said strip which are formed
by said latter creasing members.
14. Apparatus for forming from a strip of
sheet-like resilient lmaterial a cushion unit com
65 prising successive convolutions extending at op
posite inclinations with respect to a plane inter
mediate the opposite side planes of said unit, in
cluding a support, first and second rolls having
shaft end portions rotatably supported by said
70 support and adapted to- receive said strip there
between, three successive coacting female and
male creasing members on said first and second
rolls respectively adapted to crease said strip
transversely of its length at longitudinally spaced
locations and to fold adjacent panels thereof in
members ñxed to said rolls between certain of
said rolls, each of said plate members having a
pair of slots which are inclined with respect to
the longitudinal axes of said rolls, extensible
members of substantially U-shaped cross section 65
each of which is slidably mounted on one of
said plate members and having cross pins ex
tending into said slots, a pair of plates each of
which is axially slidably mounted on an adjacent
shaft end portion of one of said rolls, links piv~- 70
otally connected to the sides of said extensible
members and toV said plates, yieldable means for
yieldably urging said plates away from said rolls
whereby said cross pins are retained in their
retracted positions in one extremity of said slots, 75
2,133,428
and means including a cam operable in timed
relationship with respect to rotation of said rolls
for automatically Varying the positions of said
plates whereby the radial movement of all of said
Cil extensible members is controlled during each of a
plurality of rotations of said rolls, and selective
means for disrupting the control from said cam
7
to either of said plates whereby said extensible
members of one of said rolls are held intheir
retracted positions While the radial movement of
the extensible members of the other of said rolls
is automatically controlled.
WALTER P. COUSINO.
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